1.twin screw extruder,double screw extruder for pet food,snacks,soya protein nuggets,modified starch,nutritious powder etc 2 ... /h,500-800kg/h,800-1000kg/hTwin screw extruder/double screw extruder can produce various fallow foods, snacks, core-filled foods, grain gruel, nutrient ... Permanent working life: with special material and technology, the screw and nut involved can work continuously for one year ...